8223866928 has 80 divisors (see below), whose sum is σ = 23695626240. Its totient is φ = 2730828096.

The previous prime is 8223866927. The next prime is 8223866929. The reversal of 8223866928 is 8296683228.

It is an interprime number because it is at equal distance from previous prime (8223866927) and next prime (8223866929).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (8223866923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77425 + ... + 149807.

It is an arithmetic number, because the mean of its divisors is an integer number (296195328).

Almost surely, 2^8223866928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8223866928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11847813120).

8223866928 is an abundant number, since it is smaller than the sum of its proper divisors (15471759312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8223866928 is a wasteful number, since it uses less digits than its factorization.

8223866928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72663 (or 72651 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The square root of 8223866928 is about 90685.5386927817. The cubic root of 8223866928 is about 2018.4842178916.

The spelling of 8223866928 in words is "eight billion, two hundred twenty-three million, eight hundred sixty-six thousand, nine hundred twenty-eight".